Question

in a school duration of period in primary wing is 40 minutes and in senior wing it is of 50 minutes if possible for each section rings at 8:00 a.m. when will the two bell ring together again​

Answer 1

Answer:

Step-by-step explanation:

Hey there, 

We know that In a school the duration of a period in junior section is 40 minutes and in senior section is 1 hour .

To solve the problem we have to find the least common multiple of 40 mins and 1 hr (60 min) 

The least common multiple of 40 , 60 is 120

2³⋅3^1⋅5^1=120

so it will ring after 120 minutes

which is, it will ring a 11 am

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Answer 2

Answer:

Step-by-step explanation:

Primary wing is 40 min

And senior wing is 50

And their lcm= 5*2*2*2*5=200 min

1 hr =60 min

200 min=200 ÷ 60=3 hr

Section rings after 8:00 a.m

= 8+3=11 a.m